Rope winding device



ROPE WINDING DEVICE Filed Nov. 1. 1928 2 Sheets-Sheet 1 I 7 I 1 I 6 [3 J9 .55 7 62 1 2 42 li'lgj 41 60 ll 6 24 J l O 11196 Wbverses;

DR. 20, Q K|ENZLE ROPE WINDING DEVICE Filed Nov. 1, 1928 2 Sheets-Sheet 2 Patented Dec. 20, 1932 V UNITED STATES PATENT OFFICE CHARLES J. KIENZLE, OF COLUMBUS, OHIO, ASSIGNOR TO THE JEFFREY MANUFACTUR- ING- COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO ROPE WINDING DEVICE Application filed November 1, 1928. Serial No. 316,536.

The present invention relates to certain new and useful improvements in rope wind ing devices adapted for use as the feeding and guiding mechanism of coal mining machines of the type adapted to rest upon and slide in an direction over the floor of a mine.

he especial object of this invention is to provide, in a machine of the class described, improved winding mechanism. comprising two similar winding drums and ropes windable thereon associated with actuatingand controlling mechanism whereby the ropes may be wound either simultaneously or separately at either a relatively high speed suitable for handling the machine or at a 'relabodiment of my invention certain parts being broken away to reveal other parts.

Fig. 2 is a sectional view taken along the line- IIII of Fig. 1.

Fig. Sis a rear elevational view of the mechanism illustrated in Fig. 1 a cover plate being removed to show the feed controlling mechanism.

Fig. 4 is a sectional view taken along the line IVIV of Fig. 1'.

Fig. 5 is a fragmentary sectional view taken along the line VV 0f Fig. 1.

Fig. 6 is a fragmentary sectional view taken along the line VIVI of Fig. 1.

Fig. 7 is a diagrammatic detail of the brake mechanism associated with the. drum actuating mechanism.

several figures.

In the drawings I have shown the preferred embodiment of my invention which is adapted for application t0-a coal mining machine of the well known shortwall type. As here shown the winding drums 1 and 2 upon which are'windable the feed ropes 3 and 1, and their actuating mechanisms are mounted upon a frame composed of three castings 5, 6 and 7 which aresecurely joined together and to the frame 8 of the mining machme by the attachment .bolts '9. The

drums 1 and 2 are mounted to' revolve about vertical axes symmetrically positioned one at either side of the longitudinal centerline of themachine; Since the winding drums 1 and 2 and their actuating mechanism are alike a description of one will apply to both. The drum' 1 is mounted to revolve upon a hub 10 which, in turn, is eccentrically rotatable about a stationary shaft 11 fixed to the frame of the machine. The hub 10 is provided with an arm 12 projecting horizontally to a' position convenient to the hand of the operator. Formed on the inner face of the drum 1 are internal gear teeth adapted to engage the teeth of a pinion 13 formed integral with thevertical shaft 14 which is. journaled in a bearing 15 formed inthe casting 6 of the machine frame. v The shaft 14 is operatively connected with the armature shaft 16 of the mining machine motor through a train of gearing comprising a planetary gear system whichincorporates mechanism whereby the actuation v of the drum l may be controlled. Keyed to the upper end of the shaft let is a wheel 171 the hub p 18 of which forms a journal for. thesh'aft let in the bearing 19 ofthe top casting 7 of the machine framer The'wheel '17 is provided with a downwardly projecting annular flange 20 having on its inner face gear teeth whichengage the teeth of a plurality of pinions 21. i The pinions 21 are freely rotatable upon stud shafts 22 fixed to the spider 23. The spider 23has inwardly projecting bearing elements 24 engaging a bearing sur-- face formed on thehub 18 of the wheel 17. to maintain said spider in concentric, rela- V Like numerals refer to similar parts in the tion with the shaft 14. Other pinions 25 are formed integral with the pinions 21, andthese pinions 25 engage a spur gear 26 fixed to the'hub'of the worm wheel 27 which is freely rotatable about the shaft 14; The

worm wheel 27 engages a' worm. 28 formed integral with the worm shaft 29 and this worm shaft is supported in journal bearings 30 and 31 of the frame casting 6-; which are,

positioned-in the central longitudinal verformed of spring steel, or other'suitable material, having a relatively high COQi'llClGllt of elasticity and they are preferably lined withfibrous material, as shown at 37 in Fig. 2, to provide a suitable coefficient offriction. The said brake bands are formed with curvature of somewhat greater diameter lthan the cylindrical surfaces which they embrace, .and tend to spring away from said surfaces. A lug 38 fixed to one end of the brake band 37 engages the abutment 39' formed on the machine frame, and a similar lug 40 formed on the other end of the brake band engages a finger 41 which projects up wardly from the feed nut 42. Similar lugs 43 and 44 attached to the brake band .34 engage the abutment 45 of the machine frame, and the downwardly projecting finger 46 of the feed nut 42 respectively. The arrangement of these parts is such that movement of the feed nut 42 toward the right tightens the upper brake band 36 and releases the flower brake band 34 while movement ofthe nut 42 toward the left tightens the lower brake band 34' and loosens the upper brake band 36. The brake band 36is supported by the lugs 38 and '40 resting uponthe upper Jsurface of a feed nut 42 and a lug 47 at-' tached to the, middle of the band and engaging a flange 48 of the machine frame. The brake band 34 is similarly. supported, the

l the machine frame. r t

acts to prevent longitudinal movement of drum 2 is similar to that above described, and because the worm wheel 27 engages the worm 28 .opposite to the worm wheel 50 the drum will be driven in a clockwise direction when frame and lugs 57 and 58 engaging the fingers 59 and 60 of the feed nut 61.

The feed nut 61 is slidably supported, in guideways 62 formed in themachine frame.

and is screw threaded to a shaft 63 which ex- =tends transversely of the machine. A flange 64 formedintegral with the shaft 63 and a collar 65 screw threaded thereto engage opposite sides of a thrust collar 66 seated in a suitable recess of the machine frame which the shaft 63in either direction. Fixed to the other end of the shaft 63 is a spur gear 67 which engages a similar gear 68 formed on a cylindrical sleeve 69 which projects through the machine frame and is journaled in a bearing 70 thereof. On the outer end of the sleeve 69 is formed a hand wheel 71 positioned convenient to the hand of the operator by manipulation of which the shaft 63 may be 7 rotated in either direction to cause longitudinal movement of the nut 61 1n the guide- .way 62. The feed nut 42 is slidable in a gear 78 fixed to the shaft 79. The shaft 79 is rotatably mounted in the sleeve 69 and to its projecting end is attached a second hand wheel 80 by the manipulation of which the sleeve 73 may be rotated to move the feed nut 42 longitudinally in its guid-eways; The guideways 72 and 62 and the recesses for the thrust collars 66 and 7 6 are open rearwardly of the machine to facilitate the insertion or removal of the shaft 63 and its associated parts, and these parts are retained in operative position by the cover plates 81 attached to the frame castings 6 and 7 by suitable bolts. v

When by manipulation of the hand wheel 80 the feed nut 42 is moved to the left the brake band 34 will be tightened to prevent rotation of the spider 23 thereby causing the vertical shaft- 14 to be driven to wind the feed lugs 43 and 44. resting, upon a surface 49 of A rope 3 at .a relatively fast speed suitable for 4 7 handling the machine over the mine floor. The planetary system associated with the lVhen the feed nut 42 is similarly movedto the right, the brake band 36 will be tightened to prevent rotation of the ring gear 35 and thereby cause the vertical shaft 14 to be driven to wind the feed rope 3 at a relatively low speed suitable for feeding the cutting mechanism into the coal. When the feed nut 42 is in the central, or neutral position. both of the brake bands 34 and 36 will be released from engagement with their respective driving elements, and the shaft 14 will remain idle. It is apparent that if either of the brake bands is partially tightened, permitting a greater or less degree of slippage between the brake band and its respective driving element, the speed of the shaft 14 will be proportionately reduced, and that these brake bands may act, under such circumstances, to retard rotation of the shaft 14 in a reverse direction.

By manipulation of the hand wheel 71 the fi-winding under frictional control. It will be noted that the hand wheels are so disposed relative to the associated drums that the wheel at the extreme left of the machine controls the drum at the left, and the wheel-to the right controls the drum at the right of the machine. This means that the relative POSltions of the wheelsis indicative of the posi-.

tion of the drums controlled thereby.

By the arrangement of parts above described, I have produced a rope winding device having two winding drums either or both of which may be caused to revolve in arope winding direction either simultaneously. or

separately at either a relatively high or at a relatively low speed or these drumsv may be permitted to revolve in an unwinding direction under frictional control. What I claim is: I a 1. In a machine of the class described, the combination with a frame, of a winding drum mounted thereon, a system of power trans mission devices arranged to connect said drum with a source of rotative power, said system including two cylindrical brake elements and brake bands cooperating therewith, a-nd a control device movable in one direction to engage with one of said brake bands and thereby cause rotation of said drum at relatively high speed and movable in the other direction to engage with the other brake band and thereby cause rotation of said drum at relatively low speed.

2. In a machine of the class described, the combination with a frame, of a winding drum thereon, a system of power transmission devices arranged to connect said drum with a 7 source of rotative power said system including two cylindrical brakeelements and brake bands cooperating therewith, and a movable control device having a finger adapted when said device is moved in one direction to engage and compress one of said brake bands and thereby cause rotation of said drum at relatively high speed and a second finger adapted when said device is moved in the other direction to engage and compress the other brake band and thereby cause rotation of said drum at relatively low speed as and for the purpose set forth,

3. In a machine of the class described, the combination with a frame, of a winding drum mounted thereon, a system of power transmission devices arranged to connect said drum with a source of rotative power said system including two cylindrical brake ele-' ments and brake bands cooperating therewith, a control device'movable in one direction to engage with one of said brake bands and thereby cause rotation of said drum at relatively high speed and movable in the other direction to engage with the other combination with a frame, of two winding.

drums mounted thereon, systems of power transmission devices arranged to connect each of said drums with a source of rotative power said systems each including two cylindrical brake elements and brake bands cooperating therewith, two movable control devices and each adapted to cooperate with the brake bands of one of said transmission systems, a shaft extending transversely of the frame and screw threaded to one of said control devices, a sleeve mounted concentrically with said shaft and screw threaded to the other control device, two hand wheels mounted in bearings of the frame, and gears arranged to connect one of said hand wheelswith said shaft and the other with said sleeve as and for the purpose set forth.

5. In a machine of the class described, the combinationwith a frame,'of a winding drum mounted thereon, a system of plural speed power transmission devices arranged to connect said drum with a source of rotative power, said system including a plurality of co-axially disposed brake drums, brakebands operatively disposed relative to said drums, and means for selectively tightening said to simultaneously tighten one of said bands and loosen the other.

6. In a machine of the class described, the Y combination witha frame, of a winding drum mounted thereon, a system of plural speed power transmission devices arranged to connect said drum with a source of rotative power, said system including a pluralityof co-axially disposed brake drums, brake bands I operatively disposed relative to said drums, and vmeans for selectively tightening said bands to control the transmission speed,'said control means comprising a member r'ecip rocable substantially tangentially of said I bands and in aplane intermediate the planes of said bands and engageable therewith, said member in either direction of movement acting to. simultaneously tighten one of said bands and loosen the other.-

7. In a machine of theclass described, the

combination with a frame, of a winding drum mounted thereon, a system of plural speed power transmission devices arranged to connect said drum with a source ofrotative power, said system including aplurality of co-axially disposed brake drums, brake bands operatively disposed relative to said'drums, and means for selectively tightening said bands to control thetransmission speed, said control means comprising a threaded meml ber extending substantially tangentially of taneously' tighten one said hands, a nut reciprocable along said threaded member upon rotation of the latter and engageable with the bands, said nut in either direction of movement acting to simulof said bands and loosen the other.

8. In a machine of the class described, the combination with a frame, of a winding drum mounted thereon, a system of plural speed power transmission devices arranged to connect said drum with a source of rotative power, said system including a plurality of co-axially disposed brake drums, brake bands m operatively disposed relative to saiddrums,

and means-for selectively ti htening said bands to control the transmission speed, said control means comprising a threaded member extending substantially tangentially of M. said bands and in a plane intermediate the planes about a common horizontal axis extending substantiallyparallel to the plane including the drum axes, the outermost of said wheels being associated with the nearer of:

the twodrums and the otherwheel being as sociated with the other drum;

- 10. In a machine of the class described, the "combination with a rotatable element, of a source of rotative power and a pair of selected transmission trains for "connecting said source and element to drive the latter, each of said trains including a brake drum and the brake drums being coaxially mounted, split brake hands operatively disposed relative to said drums with the ends of the one band in substantially registering relation to the ends of the other, means engaging the opposite ends of the two bands and reciprocableto tighten one of the latter upon movement in one direction and the other upon movement in the other direction, and means engaging the otherends of the bands to enable them to be tensioned. V 1

11. In a machine of the class described, the combination with a rotatable element, of a source of rotati-ve power and a pair of selected transmission trains for connecting said source and element to drive the. latter, each of said trains including'a brakedrum and the brake drums being coaxially mounted, split brake bands operatively disposed relative to said drums with theends of the one band in substantially registering relation to the ends of the other, means engaging the opposite ends of the two bands and reciprocable substantially tangentiallyof the bands to tighten one of the latter upon movement in one direction and the other upon, movement in the other direction, and means engaging the other ends of the bands to enable them to be tensioned.

12. The combinationwith a'pair of 00- i axially disposed drums and brake bands therefor, of a: band operator reciprocable substantiallytangentially of the drums and having meansengaging one of the bands to tighten it upon movement in one. direction r and means'engaging the other 'b'and to tighten the latter upon movement in the opposite direction. c

13. The combination .witha pair of coaxially disposed drums and brake bands therefor, of a band operator reciprocable substantiallytangentially of the drums and having means engaging one of the bands to tighten it upon movement in one direction and means engaging the other band to tighten the latter upon movement in the opposite di- 'rection, and means for reciprocating said operator comprising a rotary shaft on'which the operator is screw-threaded. I

In testimony whereof I have hereunto set my hand.

CHARLES J KIENZLE. 

